"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => 基本配置
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" 历史记录行数
set history=500

" 开启文件检测
filetype plugin on
filetype indent on

" 设置当文件被改动时自动载入
set autoread

" 设置leader
let mapleader = ","
let g:mapleader = ","
set showcmd

" 保存文件
nmap <leader>w :w!<cr>

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => 用户的配置
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" 把光标设置在屏幕中间
set so=100

" 防止windows乱码
let $LANG='en' 
set langmenu=en
source $VIMRUNTIME/delmenu.vim
source $VIMRUNTIME/menu.vim

" 命令模式tab补全菜单
set wildmenu

" 忽略文件
set wildignore=*.o,*~,*.pyc
if has("win16") || has("win32")
    set wildignore+=.git\*,.hg\*,.svn\*
else
    set wildignore+=*/.git/*,*/.hg/*,*/.svn/*,*/.DS_Store
endif
"显示当前位置行号和列号
set ruler

" 命令栏的高度
set cmdheight=2

" 隐藏buffer
set hid

" Configure backspace so it acts as it should act
set backspace=eol,start,indent
set whichwrap+=<,>,h,l

" 搜索时忽略大小写，但在有一个或以上大写字母时仍大小写敏感
set ignorecase
set smartcase

" 搜索时高亮显示被找到的文本
set hlsearch

" 实时搜索
set incsearch 

" 当运行宏时，不重绘
set lazyredraw 

" 打开macgic正则
set magic

" 显示括号配对情况
set showmatch 
" How many tenths of a second to blink when matching brackets
set mat=2

" 关闭声音
set noerrorbells
set novisualbell
set t_vb=
set tm=500

nnoremap <Space> za
vnoremap <Space> za
inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"

" Macvim 关闭声音
if has("gui_macvim")
    autocmd GUIEnter * set vb t_vb=
endif


" 设置折叠区域的宽度
set foldcolumn=1
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => 颜色和字体 
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" 开启语法高亮
syntax enable 

if $COLORTERM == 'gnome-terminal'
    set t_Co=256
endif

try
    colorscheme oceanicnext
catch
endtry

set background=dark

" 隐藏工具栏
if has("gui_running")
    set guioptions-=T
    set guioptions-=e
    set t_Co=256
    set guitablabel=%M\ %t
endif

set encoding=utf8

" Use Unix as the standard file type
set ffs=unix,dos,mac

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => 编辑设置
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" 设置无缓存文件
set nobackup
set nowb
set noswapfile


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Text, tab and indent related
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" 用空格代替Tab
set expandtab

set smarttab
set shiftwidth=4
set tabstop=4

" Linebreak on 500 characters
set lbr
set tw=500

set ai "Auto indent
set si "Smart indent
set wrap "Wrap lines


""""""""""""""""""""""""""""""
" => Visual mode related
""""""""""""""""""""""""""""""
" Visual mode pressing * or # searches for the current selection
" Super useful! From an idea by Michael Naumann
vnoremap <silent> * :<C-u>call VisualSelection('', '')<CR>/<C-R>=@/<CR><CR>
vnoremap <silent> # :<C-u>call VisualSelection('', '')<CR>?<C-R>=@/<CR><CR>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Moving around, tabs, windows and buffers
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" Disable highlight when <leader><cr> is pressed
map <silent> <leader><cr> :noh<cr>

" 在窗口间快速移动
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" 关闭当前的 buffer
map <leader>bd :Bclose<cr>:tabclose<cr>gT

" 关闭所有的 buffers
map <leader>ba :bufdo bd<cr>

" 切换tabbuffer
map <leader>l :bnext<cr>
map <leader>h :bprevious<cr>

" tabbuffer的快捷键
map <leader>tn :tabnew<cr> "打开新的tab
map <leader>tc :tabclose<cr> "关闭当前tab
map <leader>tm :tabmove "移动tab

" Let 'tl' toggle between this and the last accessed tab
let g:lasttab = 1
nmap <Leader>tl :exe "tabn ".g:lasttab<CR>
au TabLeave * let g:lasttab = tabpagenr()


" Opens a new tab with the current buffer's path
" Super useful when editing files in the same directory
map <leader>te :tabedit <c-r>=expand("%:p:h")<cr>/

" Switch CWD to the directory of the open buffer
map <leader>cd :cd %:p:h<cr>:pwd<cr>

" Specify the behavior when switching between buffers 
try
  set switchbuf=useopen,usetab,newtab
  set stal=2
catch
endtry

" Return to last edit position when opening files (You want this!)
au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif


""""""""""""""""""""""""""""""
" => 状态栏
""""""""""""""""""""""""""""""
" 显示状态栏
set laststatus=2

" Format the status line
set statusline=\ %{HasPaste()}%F%m%r%h\ %w\ \ CWD:\ %r%{getcwd()}%h\ \ \ Line:\ %l\ \ Column:\ %c


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => 编辑的快捷键
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" 0 回到行数
map 0 ^

" Move a line of text using ALT+[jk] or Command+[jk] on mac
nmap <M-j> mz:m+<cr>`z
nmap <M-k> mz:m-2<cr>`z
vmap <M-j> :m'>+<cr>`<my`>mzgv`yo`z
vmap <M-k> :m'<-2<cr>`>my`<mzgv`yo`z

if has("mac") || has("macunix")
  nmap <D-j> <M-j>
  nmap <D-k> <M-k>
  vmap <D-j> <M-j>
  vmap <D-k> <M-k>
endif

" Delete trailing white space on save, useful for Python and CoffeeScript ;)
func! DeleteTrailingWS()
  exe "normal mz"
  %s/\s\+$//ge
  exe "normal `z"
endfunc
autocmd BufWrite *.py :call DeleteTrailingWS()
autocmd BufWrite *.coffee :call DeleteTrailingWS()


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Ag searching and cope displaying
"    requires ag.vim - it's much better than vimgrep/grep
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" When you press gv you Ag after the selected text
vnoremap <silent> gv :call VisualSelection('gv', '')<CR>

" Open Ag and put the cursor in the right position
map <leader>g :Ag 

" When you press <leader>r you can search and replace the selected text
vnoremap <silent> <leader>r :call VisualSelection('replace', '')<CR>

" Do :help cope if you are unsure what cope is. It's super useful!
"
" When you search with Ag, display your results in cope by doing:
"   <leader>cc
"
" To go to the next search result do:
"   <leader>n
"
" To go to the previous search results do:
"   <leader>p
"
map <leader>cc :botright cope<cr>
map <leader>co ggVGy:tabnew<cr>:set syntax=qf<cr>pgg
map <leader>n :cn<cr>
map <leader>p :cp<cr>


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Spell checking
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Pressing ,ss will toggle and untoggle spell checking
map <leader>ss :setlocal spell!<cr>

" Shortcuts using <leader>
map <leader>sn ]s
map <leader>sp [s
map <leader>sa zg
map <leader>s? z=


"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Misc
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Remove the Windows ^M - when the encodings gets messed up
noremap <Leader>m mmHmt:%s/<C-V><cr>//ge<cr>'tzt'm

" Quickly open a buffer for scribble
map <leader>q :e ~/buffer<cr>

" Quickly open a markdown buffer for scribble
map <leader>x :e ~/buffer.md<cr>

" Toggle paste mode on and off
map <leader>pp :setlocal paste!<cr>




"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Helper functions
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! CmdLine(str)
    exe "menu Foo.Bar :" . a:str
    emenu Foo.Bar
    unmenu Foo
endfunction 

function! VisualSelection(direction, extra_filter) range
    let l:saved_reg = @"
    execute "normal! vgvy"

    let l:pattern = escape(@", "\\/.*'$^~[]")
    let l:pattern = substitute(l:pattern, "\n$", "", "")

    if a:direction == 'gv'
        call CmdLine("Ag '" . l:pattern . "' " )
    elseif a:direction == 'replace'
        call CmdLine("%s" . '/'. l:pattern . '/')
    endif

    let @/ = l:pattern
    let @" = l:saved_reg
endfunction


" Returns true if paste mode is enabled
function! HasPaste()
    if &paste
        return 'PASTE MODE  '
    endif
    return ''
endfunction

" Don't close window, when deleting a buffer
command! Bclose call <SID>BufcloseCloseIt()
function! <SID>BufcloseCloseIt()
   let l:currentBufNum = bufnr("%")
   let l:alternateBufNum = bufnr("#")

   if buflisted(l:alternateBufNum)
     buffer #
   else
     bnext
   endif

   if bufnr("%") == l:currentBufNum
     new
   endif

   if buflisted(l:currentBufNum)
     execute("bdelete! ".l:currentBufNum)
   endif
endfunction

"Make VIM remember position in file after reopen
if has("autocmd")
  au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif
endif
